Adapter for casing heads



Sept. 15, 1931. c, B 1,823,234

ADAPTER FOR CASING HEADS Filed Nov. 21, 1927 INVENTOR Patented Sept. 15, 1931 UNITED STATES PATENT OFFICE IVAN O. BELL, OF DALLAS, TEXAS, ASSIG-NOR TO THE GUEIIBERSON CORPORATION, OF

' DALLAS, TEXAS, A CORPORATION OF DELAWARE ADAPTER FOR CASING HEADS Application filed November 21, 1927. Serial No. 234,703.

This invention relates to new and useful improvements in adapters for casing heads.

One object of the invention is to provide an adapter whereby a tubing stripper, or

other device, may be coupled or attached to a casing head in an easy and expeditious manner and against a head pressure.

Another object of the invention is to provide an adapter which will enable a tubing stripper, or other device, to be set down against a flowing fluid and held while being.

secured in place.

A further object of the invention is to provide an ada ter made in a plurality of section's wherel iy it ma be seated in a casing head without with rawing the projecting tubing.

A construction designed to carry out the invention will be hereinafter described, to-

gether with other features of the invention.

The invention will be more readily understood from a reading of the following specification and by reference to the accompanying drawings, in which an example of sthe invention is shown and wherein:

Fig. 1 is a perspective view of a portion of a tubing stripper engaged in an adapter constructed in accordance withthe invention,

gig. 2 is a perspective view of the adapter,

Fig. 3 is a plan view of the same.

In the drawings the numeral 10 designates one section of an adapter and 11 the other section, said sections being complementary.

The sections when assembled produce a de-,

pending pedestal A having a circular base flange B and an annular enlarged head C.

The pedestal portions are provided with vertical reinforcing ribs 12 along their meeting edges. Each section is provided with an outwardly directed shoulder or seat 13 forming the bottom of the head C. From the outer edge of ,each seat a semi-circular flange 13 extends upwardly. Each flange is provided with 'an outwardly extending car 14 and these ears are secured together by bolts 15 and nuts 16, whereby the sections may beseoured together or taken apart.

Each flange 13' is formed with an inclined bayonet slot 17 having an overhanging fin er 18. The flange in each section is provi ed with an abru t incline 19 leading down to the bottom of the slot 17 and forming an approach guide. The slots are both directed counter-clockwise, but this may be reversed. I v

The tubing stripper D is provided with outwardly directed radial pins E. Each flange 13 is provided at opposite ends adjacent the ears 14 with radial set screws 20 spaced above the seats 13.

In using the device the sections 10 and 11 Y may be engaged on either side of an upstanding tubing and secured by passing the bolts 15 through the cars 14, and securing said bolts with the nuts 16. If there is no upstanding tubing, the adapter may be first assembled as described. The adapter having been assembled the pedestal A is placed in the casing head, not shown, and secured by the usual bolts which engage over the base flange B, as is well known and common in the art.

The tubing stripper D, having been suitably assembled, is lowered so as to telescope into the flanges 13 and the pins E brought into contact with the guides 19. By rotating the stripper in a clockwise direction, the pins E will ride into the slots 17 and continued r0- tation will force the bottom of the stripper into close contact with the seats 13 owing to the downward inclination of the slots. It will be seen that the coupling is quickly made and sufficientweight may be placed upon the stripper to seat it against either a head pressure or a flowing liquid. After the stripper is seated the screws 20 are tightened so as to hold said stripper in place. It is obvious that the stripper may be quickly removed. I

While I have illustrated and described the adapter for use with a tubing stripper, it is to be understood that it could be used for coupling a'spider, an oil saver, a cutoff valve, or any other device it was desired to couple to a casing head. 7

Various changes in the size and shape of the different parts, as well as modifications,

and alterations may be made within the scope of the appended claims.

What I claim, is:

1. An adapter of the class described comprising, a reduced depending pedestal having attaching means atits base, an annular seat directed outwardly from the top of the pedestal, an annular flange directed vertically from the outer edge of the seat, said seat and flange forming an en-\ larged head, the flange having opposite bayonet slots therethrough and inclined guides leading from said slots to the topv of the head, and diametrically opposite set 1 screws mounted in the flange. v

2. An adapter. of the class described, comprising a reduced depending pedestal having attaching means at its base, an annular seat directed outwardly from the top of the pedestal, an annular flange directed vertically from the outer edge of the seat, said seat and flange forming an enlarged head the flange having opposite bayonet slots therethrough and inclined guides leading from said slots to the top of the head, diametrically opposite set screws mounted in the flange, the adapter being split diametrically into two sections each provided with outstanding contacting ears, and means for fastening said ears together to unite the sections of the adapter.

3. In an adapter for an oil saver, an upright axial pedestal having a base for engaging in a casing head, anfoutwardly directed annular seat extending from the top of the pedestal and overhanging the same, and an annular upright flange extending from the outer margin of the seat and surrounding the same, the flange having bayonet slots 40 provided with inclined guides at their open ends, and set screws penetrating the flange.

In testimony whereof I aflix m si ature.

IVAN B LL. 

